Casement-window structure



G.W. DEWATERS. ACASEIVIEJT WINDOW STRUCTURE.

APPLICATION FILED' JUNE 20,1921.

Patented Nov.I 28, 1922,

O mw Patented Nov. 28, 1922.

UITED Price.

CASEMENT-WINIDOW STRUCTURE.

Application filed .Tune 20,

To @ZZ wir-0m it may concern.'

Be it known that I, GEORGIANNA W. DE VATERS, a citizen of the United States, and residing in the city of Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented or discovered the new, useful, and Improved Casement-lVindow Structures, of which the following is a specification.

My invention consists in certain new and useful improvements in easement windows.

The object which I have in view is a substantial yet inexpensive easement window structure wherein the window opens inwardly on a vertical axis; is rain-tight when closed, and is easy to operate in either opening or closing.

I accomplish this object by the provision of a structure presenting the followingv characteristics. vided with downwardly and outwardly inclined surfaces at its top and bottom and the top and bottom of the sash are provided with similar surfaces adapted to mate therewith, but the sash is sufficiently shorter than the opening in the frame to permit the window to be swung into its closed position at the proper elevation to mate its upper surface with the upper incline surface of the frame while its lower edge clears the lower bar of the frame. The sash is then lowered and nested so that its lower edge mates with the lower incline surface of the frame. Means are provided for enclosing from without the space between the upper edge of the sash and the top of the window opening when the window is closed, and also for sealing from without the vertical edges of the sash when closed. I also provide a novel form of hinges which support the sash when open and which permit of raising the sash suiiciently, in closing, to permit it to clear the bottom bar of the frame, as above described. i

Other novel features of construction and arrangement of parts will appear fromthe following description.

In the accompanying drawings, which are intended to illustrate the principles of my invention, Fig. l is an elevation showing an inside view of the window frame and sash with the latter closed; Fig. 2 is a vertical section of the frame, the window being shown swung partly open; Fig. 3 is a broken sectional view taken along the line III-III in Fig. l; Fig. 4f is a horizontal section The window frame is pro-y 1921. serial No. 478,862.

taken along the line IV--IV in Fig. 3, and Fig. 5 is an enlarged detail showing the form of hinge used.

The following' is a detailed description of the drawings.

A represents the window frame, which is of course built into the building in the usual manner, and B represents the glazed sash which is hinged to the frame by one of its vertical edges. The form of hinge which I show` comprises the sash plate l, the frame l plate 2 and the pintle 3. The sash plate is provided with a single pintle sleeve which is. interposedy between, the upper and lower pintle sleeves of the frame plate, suicient clearance being' provided for the sash plate sleeve so that `the sash may be raised and lowered on its hinges relative to the frame, as will later more clearly appear.

4i represents the handle or lever of a spring catch or lock mortised into the edge l of the sash and adapted to engage a suitable keeper mortised into 4the frame in the usual manner.

I prefer to provide the bottom bar of the sash with a suitable grasp 5 to aid inlraising the sash on its hinges, and to open and close the sash. r

The top bar of the window frame has its lower surface 'in the form of a downward and outward incline 6, while the upper bar of the sash has its upper surface in the form of a complementary incline 7 adapted to mate with incline 6. The bottom bar of the window frame has its upper surface in the form of a downward and outward incline 8 and the bottom bar of the sash has its lower surface in ai complementary incline 9 adapted to mate with the kincline 8. The sash, however, is suiciently less in height than the openingin 4the window frame so that when closed the sash may be lifted vertically on its hinges so as to clear the bottom bar of lthe frame when opening, and when being closed, may be lifted vertically until its upper incline `7 mates with the incline 6 of the frame, thereby vclearing thebottom bar of the frame. When the sash has been elevated and then swungopen, it is permitted to dropuntil it is supported on its hinges, as shown in Fig. 2. When elevated and swung into its closed position, the sash is permitted to drop until it nests with the frame as shown in Figs.A 1 and 3. When closed and nested, there is a vacant space 10 at the top of the sash which is sealed from without by means of the horizontal exterior finish plate 11 ofthe window frame, while vertical eX- terior finish plates 12 overlap and seal the yvertical edges of the sash when closed, and also serve^with"the plate 11 to'liniit its movement toward the exterior of -thebuilding, holding the sash nested snugly in position when closed.

The vertical movement of the sash permitted by my improved hinges is sufiicient for the. purposes in view, 'but' said hinges properly support the sash' when the window is open andrprevent it from being accidentally dismounted, as by wind 0r the effortsof a careless person in opening or closingv the window.

; of the easement type offwindow,'and which movedy when-the kwindow is cleaned.

Itis evident from-*the'foregoing that my invention 'provides a very advantageous easement window structure which possesses all the advantages both'pr'acti'cal andy artistic is also vweather-tight. IIt maybe l'readily opened and closed, thus -making ventilation andwindow cleaning easy. Itfis inexpen- 25.,

raising'and lowering levers and supports,

sive, Lv'since 'it does not require complicated which are'falso4 unsightly. It does not interfere with iyscreens'whichneed not be relVhen the windowis open,it isin itslowered posi- ,-tion'andicannot be closed until 'the 'sash is "upper'iand vlower portions of the sash relevated to clearthe bottom Irail of the'window frame. Therefore, the window cannot Vbang shut.

lVliatk I desire to claim is 1. In amcaseni'ent window structure, the combination of a window frame having the inner surfaces off they top and bottom portions throughout ftheir `thickness downwardly and-,outwardly inclined, and an inwardly swinging sash' adapted tol occupy the "opening" in"`sad `frame and hinged to the framev alongone` of its vertical' edges, in

such aimanner as yto'fpermit vert-ical movement of said'sashrelative tofsad frame, the

throughout "their thickness having their outer surfaces `inclined'to mate with the'inyclinesiof said framezandl said'sash' being 'suflicientlyfishorter than said opening sro that "itinay be elevated toclear said bottom surface in' opening and 'closing, substantially las f described.

surface of the upper and lower portions oi the sash being inclined throughout the thickness of the sash to mate with the inclines of said frame and said sash being sufficiently shorter than said, opening so that it may be elevated to clear said bottom surface in opening and closing, and an exterior closure for rthe space existing between the top of the sash and the top of the sash opening when the sash is closed overlapping the upper portion of said opening from above.

3. In a Casement window structure, the combination of a window frame provided throughout its thickness with downwardly and outwardly inclined surfaces at the top and bottom of the said opening, an inwardly .Swingingsash adapted to oocupyfsaid opening and hinged to the frame along one of its vert-ical edges in'su'ch a manner as to'per- -fmit vertical-movement vof said ysash relative to said frame, 4said sash being provided -throughout its thickness with top and bot- Htom surfaces inclined to mate with'the inclines of said frame and f said rsash being sufliciently shorter than-saidopening so that it may be elevated to clear said bottom surfacein opening and closing, an exterior closuie for the space existing between the top Vof the sash and the top of the'sash opening when the sash is closed overlapping the uplper portion offsaid opening from above, and vertically disposed plates attached to the sides of said frame and overlapping the sash 'opening' to seal the vertical edges of the sash when closed.

l. In'acasement window"structure,- the combinationlof a window frame provided throughout its' thickness with' a pair of parallel, opposed `downwardly `and voutwardlyinclinedsurfaces atLthe top and vbottom of the sash opening and sealing members secured to 'the exterior surface of'the frame atthe top and sides-of the sashopening of'said frame and'ove'rlapping said sash opening, and an inwardly swinging sash of ysubstantially the same thickness as `the frame adapted to occupy said opening and hinged to the `frame along one of its vertical edgesin such a manner as to permit of verticalfinovement'of the sash lrelative to the frame, said sash being provided throughout its thickness at its top andbottom with inclined surfaces adapted to match with the surfaces of said frame and said sash being siifiiciently shorter than said opening so'that 

